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8185434 = 231364239
BaseRepresentation
bin11111001110011001011010
3120101212022020
4133032121122
54043413214
6451235310
7126401145
oct37163132
916355266
108185434
114690924
1228a8b36
13190796a
14113105c
15aba4a9
hex7ce65a

8185434 has 8 divisors (see below), whose sum is σ = 16370880. Its totient is φ = 2728476.

The previous prime is 8185433. The next prime is 8185451. The reversal of 8185434 is 4345818.

It is a sphenic number, since it is the product of 3 distinct primes.

8185434 is an admirable number.

It is a super-3 number, since 3×81854343 (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8185395 and 8185404.

It is not an unprimeable number, because it can be changed into a prime (8185433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682114 + ... + 682125.

It is an arithmetic number, because the mean of its divisors is an integer number (2046360).

Almost surely, 28185434 is an apocalyptic number.

8185434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8185434 is a wasteful number, since it uses less digits than its factorization.

8185434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364244.

The product of its digits is 15360, while the sum is 33.

The square root of 8185434 is about 2861.0197482716. The cubic root of 8185434 is about 201.5334952435.

The spelling of 8185434 in words is "eight million, one hundred eighty-five thousand, four hundred thirty-four".

Divisors: 1 2 3 6 1364239 2728478 4092717 8185434